If a, b, c are in proportion, then

(a) a : b : : b : c
(b) a : b : : c : a
(c) a : b : : c : b
(d) a : c : : b : c

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Solution

(a) a : b :: b : c
$\Rightarrow$ ac = b²

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Similar questions

If a, b, and c are in continued proportion, then $a \times c = b^{2}$ .

Continued proportion means a:b :: b:c

a, b, c

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a : b + d = c^{3} : c^{2} d + d^{3}

For four numbers a, b, c, d if a : b = c : d, then a : c = b : d. Which property of proportion is this?

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